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openSUSE:Leap:15.2:Rings:1-MinimalX
qemu
virtio-add-ability-to-delete-vq-through-.patch
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File virtio-add-ability-to-delete-vq-through-.patch of Package qemu
From: "Michael S. Tsirkin" <mst@redhat.com> Date: Mon, 9 Dec 2019 11:46:13 -0500 Subject: virtio: add ability to delete vq through a pointer Git-commit: 722f8c51d8af223751dfb1d02de40043e8ba067e Devices tend to maintain vq pointers, allow deleting them trough a vq pointer. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/virtio/virtio.c | 15 ++++++++++----- include/hw/virtio/virtio.h | 2 ++ 2 files changed, 12 insertions(+), 5 deletions(-) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 04716b5f6ce1ccfb3f21a5b81b77..31dd140990f784884b541b293105 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2330,17 +2330,22 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size, return &vdev->vq[i]; } +void virtio_delete_queue(VirtQueue *vq) +{ + vq->vring.num = 0; + vq->vring.num_default = 0; + vq->handle_output = NULL; + vq->handle_aio_output = NULL; + g_free(vq->used_elems); +} + void virtio_del_queue(VirtIODevice *vdev, int n) { if (n < 0 || n >= VIRTIO_QUEUE_MAX) { abort(); } - vdev->vq[n].vring.num = 0; - vdev->vq[n].vring.num_default = 0; - vdev->vq[n].handle_output = NULL; - vdev->vq[n].handle_aio_output = NULL; - g_free(vdev->vq[n].used_elems); + virtio_delete_queue(&vdev->vq[n]); } static void virtio_set_isr(VirtIODevice *vdev, int value) diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index c32a815303730700e60c2ddd06c4..e18756d50d21259dda81bf1d1b1d 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -183,6 +183,8 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size, void virtio_del_queue(VirtIODevice *vdev, int n); +void virtio_delete_queue(VirtQueue *vq); + void virtqueue_push(VirtQueue *vq, const VirtQueueElement *elem, unsigned int len); void virtqueue_flush(VirtQueue *vq, unsigned int count);
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